feat: remove prometheus metrics

Signed-off-by: Matt Gleich <[email protected]>

cmd/lcp.go

@@ -12,7 +12,6 @@ import (
 	"github.com/gleich/lumber/v3"
 	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/chi/v5/middleware"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
 )
 
 func main() {
@@ -25,7 +24,6 @@ func main() {
 	r.Use(middleware.Recoverer)
 	r.Use(middleware.RedirectSlashes)
 	r.HandleFunc("/", rootRedirect)
-	r.HandleFunc("/metrics", promhttp.Handler().ServeHTTP)
 
 	github.Setup(r)
 	strava.Setup(r)

go.mod

@@ -10,20 +10,18 @@ require (
 	github.com/gorilla/websocket v1.5.3
 	github.com/joho/godotenv v1.5.1
 	github.com/minio/minio-go/v7 v7.0.82
-	github.com/prometheus/client_golang v1.20.5
 	github.com/shurcooL/githubv4 v0.0.0-20240727222349-48295856cce7
 	golang.org/x/oauth2 v0.24.0
 )
 
 require (
 	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
-	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/charmbracelet/lipgloss v1.0.0 // indirect
 	github.com/charmbracelet/x/ansi v0.6.0 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/go-ini/ini v1.67.0 // indirect
 	github.com/goccy/go-json v0.10.4 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/klauspost/compress v1.17.11 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.9 // indirect
@@ -32,17 +30,13 @@ require (
 	github.com/mattn/go-runewidth v0.0.16 // indirect
 	github.com/minio/md5-simd v1.1.2 // indirect
 	github.com/muesli/termenv v0.15.2 // indirect
-	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/prometheus/client_model v0.6.1 // indirect
-	github.com/prometheus/common v0.61.0 // indirect
-	github.com/prometheus/procfs v0.15.1 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/rs/xid v1.6.0 // indirect
 	github.com/shurcooL/graphql v0.0.0-20230722043721-ed46e5a46466 // indirect
+	github.com/stretchr/testify v1.10.0 // indirect
 	golang.org/x/crypto v0.31.0 // indirect
 	golang.org/x/net v0.33.0 // indirect
 	golang.org/x/sys v0.28.0 // indirect
 	golang.org/x/text v0.21.0 // indirect
-	google.golang.org/protobuf v1.36.0 // indirect
 )

go.sum

@@ -1,13 +1,9 @@
 github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
 github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
-github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
-github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/buckket/go-blurhash v1.1.0 h1:X5M6r0LIvwdvKiUtiNcRL2YlmOfMzYobI3VCKCZc9Do=
 github.com/buckket/go-blurhash v1.1.0/go.mod h1:aT2iqo5W9vu9GpyoLErKfTHwgODsZp3bQfXjXJUxNb8=
 github.com/caarlos0/env/v11 v11.3.1 h1:cArPWC15hWmEt+gWk7YBi7lEXTXCvpaSdCiZE2X5mCA=
 github.com/caarlos0/env/v11 v11.3.1/go.mod h1:qupehSf/Y0TUTsxKywqRt/vJjN5nz6vauiYEUUr8P4U=
-github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
-github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/charmbracelet/lipgloss v1.0.0 h1:O7VkGDvqEdGi93X+DeqsQ7PKHDgtQfF8j8/O2qFMQNg=
 github.com/charmbracelet/lipgloss v1.0.0/go.mod h1:U5fy9Z+C38obMs+T+tJqst9VGzlOYGj4ri9reL3qUlo=
 github.com/charmbracelet/x/ansi v0.6.0 h1:qOznutrb93gx9oMiGf7caF7bqqubh6YIM0SWKyA08pA=
@@ -37,8 +33,6 @@ github.com/klauspost/compress v1.17.11/go.mod h1:pMDklpSncoRMuLFrf1W9Ss9KT+0rH90
 github.com/klauspost/cpuid/v2 v2.0.1/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
 github.com/klauspost/cpuid/v2 v2.2.9 h1:66ze0taIn2H33fBvCkXuv9BmCwDfafmiIVpKV9kKGuY=
 github.com/klauspost/cpuid/v2 v2.2.9/go.mod h1:rqkxqrZ1EhYM9G+hXH7YdowN5R5RGN6NK4QwQ3WMXF8=
-github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
-github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
 github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
 github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
@@ -51,20 +45,10 @@ github.com/minio/minio-go/v7 v7.0.82 h1:tWfICLhmp2aFPXL8Tli0XDTHj2VB/fNf0PC1f/i1
 github.com/minio/minio-go/v7 v7.0.82/go.mod h1:84gmIilaX4zcvAWWzJ5Z1WI5axN+hAbM5w25xf8xvC0=
 github.com/muesli/termenv v0.15.2 h1:GohcuySI0QmI3wN8Ok9PtKGkgkFIk7y6Vpb5PvrY+Wo=
 github.com/muesli/termenv v0.15.2/go.mod h1:Epx+iuz8sNs7mNKhxzH4fWXGNpZwUaJKRS1noLXviQ8=
-github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq1c1nUAm88MOHcQC9l5mIlSMApZMrHA=
-github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/prometheus/client_golang v1.20.5 h1:cxppBPuYhUnsO6yo/aoRol4L7q7UFfdm+bR9r+8l63Y=
-github.com/prometheus/client_golang v1.20.5/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
-github.com/prometheus/client_model v0.6.1 h1:ZKSh/rekM+n3CeS952MLRAdFwIKqeY8b62p8ais2e9E=
-github.com/prometheus/client_model v0.6.1/go.mod h1:OrxVMOVHjw3lKMa8+x6HeMGkHMQyHDk9E3jmP2AmGiY=
-github.com/prometheus/common v0.61.0 h1:3gv/GThfX0cV2lpO7gkTUwZru38mxevy90Bj8YFSRQQ=
-github.com/prometheus/common v0.61.0/go.mod h1:zr29OCN/2BsJRaFwG8QOBr41D6kkchKbpeNH7pAjb/s=
-github.com/prometheus/procfs v0.15.1 h1:YagwOFzUgYfKKHX6Dr+sHT7km/hxC76UB0learggepc=
-github.com/prometheus/procfs v0.15.1/go.mod h1:fB45yRUv8NstnjriLhBQLuOUt+WW4BsoGhij/e3PBqk=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
 github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
@@ -87,7 +71,5 @@ golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
 golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=
 golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
-google.golang.org/protobuf v1.36.0 h1:mjIs9gYtt56AzC4ZaffQuh88TZurBGhIJMBZGSxNerQ=
-google.golang.org/protobuf v1.36.0/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/cache/cache.go

@@ -11,21 +11,16 @@ import (
 	"time"
 
 	"github.com/gleich/lcp-v2/internal/apis"
-	"github.com/gleich/lcp-v2/internal/metrics"
 	"github.com/gleich/lcp-v2/internal/secrets"
 	"github.com/gleich/lumber/v3"
 	"github.com/gorilla/websocket"
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/promauto"
 )
 
 type Cache[T any] struct {
 	name            string
 	dataMutex       sync.RWMutex
 	data            T
 	updated         time.Time
-	updateCounter   prometheus.Counter
-	requestCounter  prometheus.Counter
 	filePath        string
 	wsConnPool      map[*websocket.Conn]bool
 	wsConnPoolMutex sync.Mutex
@@ -34,15 +29,7 @@ type Cache[T any] struct {
 
 func New[T any](name string, data T) *Cache[T] {
 	cache := Cache[T]{
-		name: name,
-		updateCounter: promauto.NewCounter(prometheus.CounterOpts{
-			Name: fmt.Sprintf("cache_%s_updates", name),
-			Help: fmt.Sprintf(`The total number of times the cache "%s" has been updated`, name),
-		}),
-		requestCounter: promauto.NewCounter(prometheus.CounterOpts{
-			Name: fmt.Sprintf("cache_%s_requests", name),
-			Help: fmt.Sprintf(`The total number of times the cache "%s" has been requested`, name),
-		}),
+		name:       name,
 		filePath:   filepath.Join(secrets.SECRETS.CacheFolder, fmt.Sprintf("%s.json", name)),
 		wsConnPool: make(map[*websocket.Conn]bool),
 		wsUpgrader: websocket.Upgrader{
@@ -68,7 +55,6 @@ func (c *Cache[T]) ServeHTTP() http.HandlerFunc {
 		w.Header().Set("Content-Type", "application/json")
 		err := json.NewEncoder(w).Encode(cacheData[T]{Data: c.data, Updated: c.updated})
 		c.dataMutex.RUnlock()
-		c.requestCounter.Inc()
 		if err != nil {
 			lumber.Error(err, "failed to write data")
 			w.WriteHeader(http.StatusInternalServerError)
@@ -99,8 +85,6 @@ func (c *Cache[T]) Update(data T) {
 	c.dataMutex.Unlock()
 
 	if updated {
-		c.updateCounter.Inc()
-		metrics.CacheUpdates.Inc()
 		c.persistToFile()
 		connectionsUpdated := c.broadcastUpdate()
 		if connectionsUpdated == 0 {